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author | David Gibson <david@gibson.dropbear.id.au> | 2006-03-22 00:08:58 -0800 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 07:54:04 -0800 |
commit | 4866920b93fd7d5b520278c3c76e6f4d5a352d81 (patch) | |
tree | c4b8642c83e11af6d8e57ab35dc479f2c1a651d0 /include/asm-frv/pci.h | |
parent | 9da61aef0fd5b17dd4bf4baf33db12c470def774 (diff) |
[PATCH] hugepage: Fix hugepage logic in free_pgtables() harder
Turns out the hugepage logic in free_pgtables() was doubly broken. The
loop coalescing multiple normal page VMAs into one call to free_pgd_range()
had an off by one error, which could mean it would coalesce one hugepage
VMA into the same bundle (checking 'vma' not 'next' in the loop). I
transferred this bug into the new is_vm_hugetlb_page() based version.
Here's the fix.
This one didn't bite on powerpc previously for the same reason the
is_hugepage_only_range() problem didn't: powerpc's hugetlb_free_pgd_range()
is identical to free_pgd_range(). It didn't bite on ia64 because the
hugepage region is distant enough from any other region that the separated
PMD_SIZE distance test would always prevent coalescing the two together.
No libhugetlbfs testsuite regressions (ppc64, POWER5).
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-frv/pci.h')
0 files changed, 0 insertions, 0 deletions